My one suggestion is to include the Chapter title at the beginning, at 00:21 "ECLIPSES OF THE SUN MENTIONED IN HISTORY—CLASSICAL."

From the technical specifications, you'll need to change the Sample rate to 44100 Hz (currently, the file is at 48000 Hz). I think you can change this in Audacity from a drop-down menu in the Selection Toolbar (mine shows at the bottom, left corner.)
And then fix it also in the Preferences options for your future recordings (Menu Edit -> Preferences -> Quality tab -> Default sample rate: 44100 hz, Default sample format: 16-bit)

When you're ready, just reupload with the correct filename! You can check the filename format that each project calls for in the first post. This one should be storyofeclipses_10_chambers_128kb.mp3